Ethnic and mainstream social connectedness, perceived racial discrimination, and posttraumatic stress symptoms

Carter (2007) proposed the notion of race-based traumatic stress and argued that experiences of racial discrimination can be viewed as a type of trauma. In a sample of 383 Chinese international students at 2 predominantly White midwestern universities, the present results supported this notion and found that perceived racial discrimination predicted posttraumatic stress symptoms over and above perceived general stress. Furthermore, Berry (1997) proposed an acculturation framework and recommended that researchers advance the literature by examining the moderation effects on the association between racial discrimination and outcomes. The present results supported the moderation effect for Ethnic SC (i.e., social connectedness in the ethnic community), but not for Mainstream SC (i.e., social connectedness in mainstream society). A simple effects analysis indicated that a high Ethnic SC weakened the strength of the association between perceived racial discrimination and posttraumatic stress symptoms more than a low Ethnic SC. Moreover, although Mainstream SC failed to be a moderator, Mainstream SC was significantly associated with less perceived general stress, less perceived racial discrimination, and less posttraumatic stress symptoms.     

Is Milkman a superhero like Batman? Constituent morphological priming in compound words

In the present study, we examined morphological decomposition of Basque compound words in a series of masked priming lexical decision experiments. In Experiment 1, Basque compound words could be briefly preceded by other compounds that shared either the first or second constituent, or by unrelated noncompound words. Results showed a significant priming effect for words that shared a constituent, independently of its position. In Experiment 2, compound words were preceded by other compound words that shared one of their constituents, but in a different lexeme position (e.g., the first constituent of the compound that acted as a prime was the second constituent of the compound that acted as a target). Results again showed a constituent priming effect (i.e., location in the string is not necessary for priming to occur). In Experiment 3, we demonstrated that these priming effects were not due to mere form overlap: pairs of noncompound words that shared either the beginning or the ending chunk did not produce a priming effect. Taken together, the present results converge with previous data on orthographic/morphological priming and provide evidence favouring early morphological decomposition.     

A piezoelectric gyroscope based on thickness-shear modes of an AlN bimorph with inclined c-axes

We propose a new structure for piezoelectric gyroscope application. It consists of a two-layered plate of AlN with inclined c-axes. Through a theoretical analysis, it is shown that when the plate is electrically driven into thickness-shear (TSh) vibration in one direction and is rotating about the plate normal, the rotation causes a TSh vibration in a perpendicular direction with an electrical output which can be used to measure the angular rate of the rotation. Since AlN can be made into thin film devices much smaller than conventional crystal acoustic wave devices, the proposed gyroscope can be made much smaller than existing piezoelectric gyroscopes. The structure can also work with other crystals of class 6mm such as ZnO and polarized ceramics.     

Inversion domain boundary in a ZnO film

Transmission electron microscopy has been used to investigate the (1100) and (1103) inversion domain boundaries in a ZnO film prepared by molecular beam epitaxy. The inversion domain was revealed by dark-field images and confirmed by convergent-beam electron diffraction. Interacting with a (0002) stacking fault, the inversion domain boundary in the (1100) plane alters its orientation from the [0001] direction and climbs on the (1103) plane to release the strain energy. These features are characterized and analysed by high-resolution electron microscopy and the geometric phase method. The findings are significant for understanding the formation and propagation of inverse domain boundaries in epitaxial ZnO films.     

Simultaneous determination of thin-film inertia and shear stiffness using thickness-twist and face-shear modes of an AT-cut quartz resonator

We propose the use of thickness-twist (TT) and face-shear (FS) vibration modes of an AT-cut quartz crystal plate resonator for simultaneous determination of the inertia and stiffness of a thin film deposited on a crystal surface. A theoretical analysis using Mindlin's first-order theory for crystal plates is performed to demonstrate the idea. Expressions for the stiffness ratio and mass ratio between the thin film and the resonator are presented in terms of frequency shifts of FS and TT modes, which are experimentally measurable. A numerical example is given.     

《管子·弟子职》教育思想新探

《管子·弟子职》篇中蕴含的教育思想应引起我们重视,其中强调“立志”的重要性、关注品德修养、“寓教于行”的教育方法以及倡导构建良好师生关系等方面,值得教育工作者深思和借鉴。     

An ethnomethodological clarification of Husserl's concepts of “regressive inquiry” and “Galilean physics” by means of discovering praxioms

This paper offers an ethnomethodological clarification of Husserl's concepts of Galilean physics and regressive inquiry. It employs the reader's textual-practical operationalization of these concepts. With the use of a simple optical prism as a perspicuous case of a scientific instrument, the reader will be asked and instructed to make a self-reflexive inquiry into the practical contingencies of the prismatic field of reflection. The reader will discover that the geometric structures of the reflective field of the prism is an achievement and formalization of the reader's own operatlonalizations. I named these discoverable discovering operationspraxioms or practical axioms — the pre-scientific contingencies of the geometric structures of prismatic reflection.I would like to thank Mike Lynch, Eric Livingston, George Psathas and Shelley Schweizer-Bjelic for their comments.     

意志与意识对记忆的交互影响

运用加工分离程序,研究了编码和提取时不同意志和意识水平对部首补笔的影响。结果发现：除编码阶段和提取阶段的意志之间不存在交互作用之外,同一阶段和（或）不同阶段的意志和（或）意识之间均存在显著的或非常显著的交互作用。研究表明：意志和意识两个因素对记忆存在复杂影响,在记忆研究中应关注意志因素的作用。研究结果验证了记忆的状态依存性。     

加压素对记忆巩固过程作用的研究 Ⅰ.精氨酸加压素(AVP)对大鼠记忆巩固过程的易化作用及脑内游离氨基酸含量的变化

本文研究了精氨酸加压素易化记忆巩固过程的作用,测定了这一作用过程中脑内15种游离氨基酸含量的变化。 1.第三天建立实验前1小时皮下注射AVP(2μg/只)显著地延缓了大鼠主动逃避条件反应的消退过程。 2.给予AVP的动物在建立期皮层视区和海马两脑区的GABA(γ-氨基丁酸)含量及海马的异亮氨酸含量下降。在保持期两脑区的苏氨酸含量下降,赖氨酸含量上升,海马的谷氨酸含量下降,但两脑区的GABA含量都没有显著变化。 3.电击应激反应的实验结果表明,给予AVP的动物海马的GABA含量及皮层视区苯丙氨酸含量下降。单独注射AVP后1小时,两脑区的天冬氨酸含量下降。AVP注射后48小时,脑内各种氨基酸含量都没有明显变化。